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| Brand | Samsung |
|---|---|
| Model | PM1643a |
| Capacity | 30.72 TB |
| Usage Class | Read Intensive |
| Host Interface | SAS 12Gb/s |
|---|---|
| Total Interface Bandwidth | 12 Gb/s |
| Form Factor | 2.5 |
|---|
| NAND Flash | Samsung V-NAND 5th-Gen 3D TLC |
|---|---|
| Drive Writes Per Day | 1 |
| Total Bytes Written | 56064 TBW |
| Sequential Read | 2100 MB/s |
|---|---|
| Sequential Write | 1700 MB/s |
| Random Read IOPS | 400000 |
| Random Write IOPS | 50000 |
| Average Latency | 100 μs |
| Mean Time Between Failures | 2 Million Hours |
|---|---|
| Uncorrectable Bit Error Rate | 1.0×10⁻¹⁷ |
| Power Loss Protection | Yes |
| MPN | MZ-ILT30T0 |
|---|
Compared with the previous-generation MZ-ILT30T0, the Samsung PM1643a (MZ-ILT30TB) advances the platform with 5th-Gen Samsung V-NAND 3D TLC and a 56,064 TBW endurance rating, delivering a stronger density-and-longevity profile at 30.72TB in the same 12Gb/s SAS enterprise tier. With up to 2100/1700 MB/s sequential performance and 400,000/50,000 random IOPS, it is a highly effective choice for high-capacity virtualization clusters, scale-up database storage, and mission-critical read-centric workloads that need maximum usable capacity without sacrificing SAS reliability.
With an endurance rating of 56,064 TBW and 1 DWPD, the MZ-ILT30TB is designed to handle a full drive write every day across its intended service life, which is a strong indicator of enterprise-grade write durability. In typical real-world use such as a boot drive, system disk, or general server storage with mixed workloads, this level of endurance is far beyond normal demand and supports long-term, worry-free operation. Its built-in Power Loss Protection (PLP) helps safeguard in-flight data and mapping information during unexpected power interruptions, reducing the risk of corruption and unplanned recovery events. An UBER of 1.0E-17 means an extremely low rate of uncorrectable bit errors, giving procurement teams added confidence in data integrity and dependable enterprise operation over time.
1. The SAS interface enables seamless integration into dual-controller enterprise storage, supporting high availability and non-disruptive maintenance in mission-critical environments.
2. Its strong sequential read capability helps accelerate data warehousing, backup recovery, and large-file streaming workloads where fast bulk access directly improves job completion times.
3. The high random read performance sustains dense VM farms, OLTP databases, and metadata-heavy applications by serving far more concurrent requests without becoming a bottleneck.
4. With enterprise-grade daily write endurance backed by Samsung’s advanced V-NAND TLC architecture, this drive offers a practical balance of lifespan, consistency, and cost efficiency for mixed-use deployments.
5. The low typical latency helps applications respond faster under load, which is especially valuable for real-time transaction processing and latency-sensitive cloud services.
Lower capacity reference: 15.36 TB Higher capacity reference: 61.44 TB Capacity positioning analysis: At 30.72 TB, the MZ-ILT30TB sits at the sweet spot of the capacity stack. Compared with 15.36 TB, it gives meaningfully more headroom for data growth, denser consolidation, and longer refresh cycles without changing the expected enterprise-class read/write or random IOPS profile. Compared with 61.44 TB, it usually delivers a more balanced mix of acquisition cost, usable capacity, and risk concentration per drive. This makes 30.72 TB especially well suited for mid-to-large virtualization clusters, scale-out storage nodes, or high-density database tiers serving roughly 200 to 350 mixed business workloads.
Q: Is MZ-ILT30TB suitable for a write-heavy database server?
A: MZ-ILT30TB can support database workloads, but with 1 DWPD it is better suited to mixed-use or read-intensive environments rather than highly write-heavy database servers with constant intensive writes.
Q: How many full drive writes per day can it actually endure over its warranty period?
A: This model is rated for 1 DWPD, meaning it can handle one full 30.72 TB drive write per day over its warranty period, aligned with its 56,064 TBW endurance rating.
Q: Does it include power loss protection (PLP) and why is that critical?
A: Yes, it includes power loss protection. PLP helps preserve in-flight data and metadata during unexpected outages, which is critical for data integrity, consistency, and enterprise application reliability.
Q: What RAID level is recommended for this SSD?
A: For enterprise deployment, RAID 10 is typically recommended for the best balance of performance and redundancy. RAID 5 or RAID 6 may also be considered when usable capacity is prioritized.